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Color‐Tunable Transparent Mesoporous Silica Films: Immobilization of One‐Dimensional Columnar Charge‐Transfer Assemblies in Aligned Silicate Nanochannels
Author(s) -
Okabe Akihiro,
Fukushima Takanori,
Ariga Katsuhiko,
Aida Takuzo
Publication year - 2002
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20020916)41:18<3414::aid-anie3414>3.0.co;2-t
Subject(s) - silicate , acceptor , charge (physics) , triphenylene , materials science , mesoporous material , mesoporous silica , chemical engineering , nanotechnology , optoelectronics , chemistry , organic chemistry , physics , liquid crystal , quantum mechanics , engineering , condensed matter physics , catalysis
Physical stabilization of triphenylene‐based charge‐transfer complexes by hexagonally aligned silica channels enables the preparation of color‐tunable, highly transparent mesoporous silica films (see picture). The donor/acceptor molar ratio was varied over a wide range (1:1 to 9:1) with the included charge‐transfer complexes exhibiting unique red‐shifted absorption bands.